#231A63#231A63

#231A63 is a dark, vivid blue. Relative luminance 0.020; OKLCH L 28.3% C 0.122 H 280.8°. Best body text is #FFFFFF at 15.01:1 contrast (WCAG AA passes).

Color values

HEX	#231A63
RGB	rgb(35, 26, 99)
HSL	hsl(247, 58%, 25%)
HSV	hsv(247, 74%, 39%)
CMYK	cmyk(64.6%, 73.7%, 0%, 61.2%)
CIE-LAB	lab(15.47, 27.70, -41.66)
CIE-LCH	lch(15.47, 50.03, 303.62°)
OKLab	oklab(28.32% 0.0229 -0.1201)
OKLCH	oklch(28.32% 0.122 280.8)
XYZ	xyz(3.3140, 1.9967, 12.0127)
Luminance	0.0200 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231A63 #5A631A

analogous

#1A3663 #231A63 #481A63

triadic

#231A63 #63231A #1A6323

tetradic

#231A63 #631A36 #5A631A #1A6348

square

#231A63 #631A36 #5A631A #1A6348

split-complementary

#231A63 #63481A #36631A

monochromatic

#090618 #120D33 #231A63 #342793 #4533C4

Accessibility & contrast

On white

15.01

#231A63 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.40

#231A63 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231A63

15.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231A63	#FFFFFF	#000000	##FFFFFF
##231A63	1.00	15.01	1.40	15.01
#FFFFFF	15.01	1.00	21.00	1.00
#000000	1.40	21.00	1.00	21.00
##FFFFFF	15.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002965

Deuteranopia (green-blind)

#002462

Tritanopia (blue-blind)

#002D3C

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #231a63;
/* rgb */ color: rgb(35, 26, 99);
/* oklch */ color: oklch(28.3% 0.122 280.8);

Tailwind

colors: {
  custom: {
    50: '#675790',
    500: '#231a63',
    950: '#000000',
  },
}

SCSS

$custom: #231a63;
$custom-light: #675790;
$custom-dark: #000000;

JSON

{
  "hex": "#231a63",
  "rgb": {
    "r": 35,
    "g": 26,
    "b": 99
  },
  "hsl": {
    "h": 247.397,
    "s": 58.4,
    "l": 24.51
  },
  "oklch": {
    "l": 0.28317,
    "c": 0.12224,
    "h": 280.8
  },
  "luminance": 0.01997
}

Semantic roles & 50–950 ramp

primary

#231A63

secondary

#8E9940

accent

#E246CE

background

#F6F5F8

surface

#EBE9F0

border

#C6C5CB

text

#06030D

muted

#7A787D

Preview Lab

Preview with #231A63

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →